Performance improvement mechanisms of P3HT:PCBM inverted polymer solar cells using extra PCBM and extra P3HT interfacial layers

Huang, Hung Lin; Lee, Ching-Ting; Lee, Hsin Ying

doi:10.1016/j.orgel.2015.03.012

Cited by 27 publications

(12 citation statements)

References 27 publications

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“…The increase in FF from 63.1% to 66.0% along with the enhancement of Jsc from 14.783 to 17.042 mA/cm 2 with the additional fullerene derivative layer suggest that the underlying does indeed, at least partially, remain unwashed. Similar results (enhancement of PCE upon additional fullerene buffer layer) have been observed on the P3HT:PC 61 BM active layers where no sacrificial solvent was used [ 70 ]. The strategy used for BHJ deposition on top of the fullerene buffer layer in this study was to anneal the buffer layer at 150 °C for 10 min prior to subsequent layer deposition to induce the formation of crystalline PC 61 BM displaying increased resistance to organic solvents.…”

Section: Sequential Deposition Processes To Fabricate Multilayer Asupporting

confidence: 78%

“…Lamination is a dry-transfer process which ensures that two parts of the active layer (e.g., polymer-concentrated and fullerene-concentrated ones or pure P3HT and PC 61 BM layers) can be assembled without mixing between the two layers [ 70 , 71 ]. While lamination itself only allows for the formation of bilayer active layers, the use of micro-contact-printing or transfer-printing consists of alternative dry-transfer processes to generate multilayer active layers without any mixing between two sequentially deposited layers [ 72 , 73 , 74 , 75 ].…”

Section: Sequential Deposition Processes To Fabricate Multilayer Amentioning

confidence: 99%

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Fabrication Processes to Generate Concentration Gradients in Polymer Solar Cell Active Layers

Inaba

Vohra

2017

Materials

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Polymer solar cells (PSCs) are considered as one of the most promising low-cost alternatives for renewable energy production with devices now reaching power conversion efficiencies (PCEs) above the milestone value of 10%. These enhanced performances were achieved by developing new electron-donor (ED) and electron-acceptor (EA) materials as well as finding the adequate morphologies in either bulk heterojunction or sequentially deposited active layers. In particular, producing adequate vertical concentration gradients with higher concentrations of ED and EA close to the anode and cathode, respectively, results in an improved charge collection and consequently higher photovoltaic parameters such as the fill factor. In this review, we relate processes to generate active layers with ED–EA vertical concentration gradients. After summarizing the formation of such concentration gradients in single layer active layers through processes such as annealing or additives, we will verify that sequential deposition of multilayered active layers can be an efficient approach to remarkably increase the fill factor and PCE of PSCs. In fact, applying this challenging approach to fabricate inverted architecture PSCs has the potential to generate low-cost, high efficiency and stable devices, which may revolutionize worldwide energy demand and/or help develop next generation devices such as semi-transparent photovoltaic windows.

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Section: Sequential Deposition Processes To Fabricate Multilayer Asupporting

confidence: 78%

Section: Sequential Deposition Processes To Fabricate Multilayer Amentioning

confidence: 99%

Fabrication Processes to Generate Concentration Gradients in Polymer Solar Cell Active Layers

Inaba

Vohra

2017

Materials

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“…Organic materials have played a significant role in the field of optoelectronic applications due to their simple device processing on flexible substrates as well as possible large scale production using role-to-role technology [1][2][3][4][5]. Several investigations have been carried out during the last few years in order to produce highly efficient organic solar cells (OSCsΨ addressing different challenges, mainly device performance and stability through the control of active morphology [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Organic solar cells: Study of combined effects of active layer nanostructure and electron and hole transport layers

2017

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“…In the recent years, significant attention has been paid to the organic solar cells (OSCs) based on bulk-heterojunction (BHJ) materials, due to their low manufacturing cost and potential applications in the field of flexible and large-area solar cells [1]. It could be said that poly(3-hexylthiophene) (P3HT) and (6,6)-phenyl-C61 butyric acid methyl ester (PCBM) are considered as the most investigated materials for OSCs [2].…”

Section: Introductionmentioning

confidence: 99%

Rutile TiO2 films as electron transport layer in inverted organic solar cell

Al‐Hashimi¹,

Kadem

Hassan

2018

J Mater Sci: Mater Electron

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Titanium dioxide (TiO 2 ) thin films were prepared by sol-gel spin coating method and deposited on ITO-coated glass substrates. The effects of different heat treatment annealing temperatures on the phase composition of TiO 2 films and its effect on the optical band gap, morphological, structural as well as using these layers in P3HT:PCBM-based organic solar cell were examined. The results show the presence of rutile phases in the TiO 2 films which were heat-treated for 2h at different temperatures (200 o C, 300 o C, 400 o C, 500 o C and 600 o C). The optical properties of the TiO 2 films have altered by temperature with a slight decrease in the transmittance intensity in the visible region with increasing the temperature. The optical band gap values were found to be in the range of 3.28-3.59eV for the forbidden direct electronic transition and 3.40-3.79eV for the allowed direct transition.TiO 2 layers were used as electron transport layer in inverted organic solar cells and resulted in a power conversion efficiency of 1.59% with short circuit current density of 6.64mA.cm -2 for TiO 2 layer heat-treated at 600 o C.

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Performance improvement mechanisms of P3HT:PCBM inverted polymer solar cells using extra PCBM and extra P3HT interfacial layers

Cited by 27 publications

References 27 publications

Fabrication Processes to Generate Concentration Gradients in Polymer Solar Cell Active Layers

Fabrication Processes to Generate Concentration Gradients in Polymer Solar Cell Active Layers

Organic solar cells: Study of combined effects of active layer nanostructure and electron and hole transport layers

Rutile TiO2 films as electron transport layer in inverted organic solar cell

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